<template>
    <div id="background">
        <div id="logo">MySystem</div>

        <div id="login">
            <el-card id="mycard" class="box-card">
                <!-- <div slot="header" class="clearfix">
                    <span>卡片名称</span>
                    <el-button style="float: right; padding: 3px 0" type="text">操作按钮</el-button>
                </div> -->
                <!-- <div v-for="o in 4" :key="o" class="text item">
                    {{ '列表内容 ' + o }}
                </div> -->

                <div id="form">
                    <el-input v-model="username" placeholder="请输入内容"></el-input>
                    <el-input placeholder="请输入密码" v-model="password" show-password></el-input>
                    <el-button type="primary">登录</el-button>

                </div>
            </el-card>
        </div>

        <div id="clock">
            <div id="time">{{ time }}</div>
            <div id="date">{{ date }}</div>
        </div>


        <div id="copyright">Copyright 2022 bilibili.All Rights Reserved</div>

    </div>
</template>



<style>
#background {
    /* background-color: darkgreen; */
    position: fixed;
    height: 100%;
    width: 100%;
    top: 0;
    left: 0;
    background-image: linear-gradient(90deg,
            cyan,
            purple);
    background-size: 400%;
    animation: myanimation 10s infinite;
}

@keyframes myanimation {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }

}

#logo {
    color: aliceblue;
    font-size: 25px;
    font-weight: 800;
    text-transform: uppercase;
    position: absolute;
    top: 15%;
    left: 15%;
}

#login {

    position: absolute;
    top: 30%;
    left: 38%;
}


#mycard {

    border: 2px solid transparent;
    border-radius: 15px;

    box-shadow: 5px 5px 00 rgba(0, 0, 0, 0.2);

    background-color: rgba(255, 255, 255, 0.4);

    width: 373px;
    height: 210px;

}

/* .box-card {
    width: 480px;
    height: 210;
  } */


#form {
    line-height: 60px;
    padding-left: 15px;
    padding-right: 15px;
}


#clock {
    color: ☐aliceblue;
    position: absolute;
    top: 70%;
    left: 15%;
    text-align: left
}




#time {
    font-size: 100px;
}

#date {
    font-size: 35px
}


#copyright {
    color:aliceblue;
    position: absolute;
    top: 95%;
    left: 38%;
}
</style>







<script>
export default {
    data() {
        return {
            username: "",
            password: "",
            time: "",
            date: "",
        }
    },

    mounted() {
        this.$nextTick(() => {
            setInterval(this.update_clock, 1000);
        })
    },
    methods: {
        update_clock: function (e) {
            var d = new Date();
            var year = d.getFullYear();
            if (year < 10) {
                year = "0" + year
            }
            var mon = d.getMonth();
            if (mon < 10) {
                mon = "0" + mon
            }
            var day = d.getDate();
            if (day < 10) {
                day = "0" + day


            }
            var hour = d.getHours();
            if (hour < 10) {
                hour = "0" + hour
            }
            var minute = d.getMinutes();
            if (minute < 10) {
                minute = "0" + minute

            }

            this.time = hour + ":" + minute;
            this.date = year + "/" + mon + "/" + day;
        }
    }

}





// DSFDSF
// AsyncDisposableStack
// sdfdf
</script>